4609609 has 9 divisors (see below), whose sum is σ = 4908423. Its totient is φ = 4328352.

The previous prime is 4609597. The next prime is 4609621. The reversal of 4609609 is 9069064.

The square root of 4609609 is 2147.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (4609597) and next prime (4609621).

It can be written as a sum of positive squares in only one way, i.e., 81225 + 4528384 = 285^2 + 2128^2 .

It is not a de Polignac number, because 4609609 - 2⁷ = 4609481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4609699) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 40737 + ... + 40849.

Almost surely, 2^4609609 is an apocalyptic number.

4609609 is the 2147-th square number.

4609609 is the 1074-th centered octagonal number.

It is an amenable number.

4609609 is a deficient number, since it is larger than the sum of its proper divisors (298814).

4609609 is an equidigital number, since it uses as much as digits as its factorization.

4609609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The cubic root of 4609609 is about 166.4260719634.

Multiplying 4609609 by its product of nonzero digits (11664), we get a square (53766479376 = 231876²).

It can be divided in two parts, 460960 and 9, that multiplied together give a triangular number (4148640 = T₂₈₈₀).

The spelling of 4609609 in words is "four million, six hundred nine thousand, six hundred nine".